Colourless or colorless may refer to:
- Transparency and translucency, transmitting all or most colours
 - Black and white, a form of visual representation that does not use color
 
See also
- Black and white (disambiguation)
 - Monochrome (disambiguation)
 - Neutral (disambiguation)
 - Boredom
 - Colorfulness
 - Shades of gray
 
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